Building Arduino projects with multiple sensors can unlock powerful environmental monitoring, automation, and IoT applications. From DHT11 temperature sensors to motion, gas, and light detectors, ...

As devices for wireless sensing systems become smaller and more complex, finding suitable power sources for them is becoming ...

A very cool (also warm!) property of the base-emitter junction of (most) small signal BJTs is the ΔVbe temperature-sensing ...

If you take a video of a spinning wheel, you’ll probably notice that the spokes appear to turn more slowly than the wheel is actually rotating, and sometimes in the wrong direction. This is caused ...

Today is Worldwide Pinhole Photography Day – the perfect opportunity to rediscover the origins of photography and experiment ...

If you were to point to a single device responsible for much of Hackaday’s early success, it might be the Arduino Uno. The ...

From remote cabins to homes that rely on generators, this security tech is a good fit without needing Wi-Fi or constant electricity. Tyler has worked on, lived with and tested all types of smart home ...